These are lessons learned the hard way.
Learn from your mistakes and don’t repeat them.
Don’t say anything you can’t stand behind fully.
Sometimes silence is a really good answer.
Ego and pride can lead to mistakes.
Control your emotions or they will control you.
Make decisions based on what you know rather than what you feel.
Expectations = Disappointment. Don’t expect anything.
Don’t go into debt.
Train to be harder to kill.
Begin nothing until you have considered how it is to be finished.
Tremendous detailed planning, violent execution.
Don’t make excuses when you fall short, instead make corrections.
Forget all the above rules. Remain fluid. (read why)